On 21-Apr-01 Bobby D. Bryant wrote:
> Isn't tanh supposed to preserve the sign of its argument?

Sure. But I get the result
  0.46212 -0.46212
and I use the gnat-3.13p-5 rpm (from ALT) too.

Perhaps it�s the C-library. Gnat uses the C-Library to compute the tanh (if
the result cannot be easily found to be -1.0 1.0 or the argument). Does the
problem occur in C too?

Wilhelm